Science: Clocks & Current

When President Roosevelt dramatically "called to life ' the electrical
generating equipment of Boulder Dam last fortnight by pressing a gold
telegraph key in Washington, he actually started only one small
generator for dam site use (TIME, Sept. 21). Next month, however, power
will begin to pour into Los Angeles from the monster 115,000 h. p.
turbines. Since this is 60-cycle current and since the city has been
using 50-cycle current, some 100,000 electric clocks would run 20%
fast on Boulder Dam power if left as they now are. Last week the city...